It is believed that as for the comprehensive harnessing the water environment, the valley should be considered as a unit based on the whole ecosystem in the valley and the comprehensive consideration of the factors, influencing the ecology, resources, economy is needed in planning, protecting, improving and utilizing the water environment, in order to real.

From the new viewpoint of basin based water resources management, the strategy, policies, and key points are proposed for basin based management, and the demands of sustainable development are pointed out.

Considerations of quasi-basin management in the Dujiangyan Irrigation District;

Agricultural ecosystem productivity of typical drainage areas found in valleys of hilly areas on loess plateaus: A case study on Zhifanggou;

Comparison between the chemical composition of bedrocks in the upper reaches and that of alluvial plain soils in the lower reaches of a drainage area;

Assessment and Regulation of Water Resources of Carst Drainage Area;